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FAIL2BA-REGEX
Section: User Commands (1) Updated: April 2024 Index
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NAME
fail2ba-regex - test Fail2ban "failregex" option
SYNOPSIS
fail2ba-regex
[ ,OPTIONS/] ,<LOG> <REGEX> /[ ,IGNOREREGEX/]
DESCRIPTION
Fail2Ban reads log file that contains password failure report
and bans the corresponding IP addresses using firewall rules.
This tools can test regular expressions for "fail2ban".
LOG:
- string
-
a string representing a log line
- filename
-
path to a log file (,/var/log/auth.log/)
- systemd-journal
-
search systemd journal (systemd-python required),
optionally with backend parameters, see `man jail.conf`
for usage and examples (systemd-journal[journalflags=1]).
REGEX:
- string
-
a string representing a 'failregex'
- filter
-
name of filter, optionally with options (sshd[mode=aggressive])
- filename
-
path to a filter file (filter.d/sshd.conf)
IGNOREREGEX:
- string
-
a string representing an 'ignoreregex'
- filename
-
path to a filter file (filter.d/sshd.conf)
OPTIONS
- --version
-
show program's version number and exit
- -h, --help
-
show this help message and exit
- -c CONFIG, --config=,CONFIG/
-
set alternate config directory
- -d DATEPATTERN, --datepattern=,DATEPATTERN/
-
set custom pattern used to match date/times
- --timezone=,TIMEZONE/, --TZ=,TIMEZONE/
-
set time-zone used by convert time format
- -e ENCODING, --encoding=,ENCODING/
-
File encoding. Default: system locale
- -r, --raw
-
Raw hosts, don't resolve dns
- --usedns=,USEDNS/
-
DNS specified replacement of tags <HOST> in regexp
('yes' - matches all form of hosts, 'no' - IP
addresses only)
- -L MAXLINES, --maxlines=,MAXLINES/
-
maxlines for multi-line regex.
- -m JOURNALMATCH, --journalmatch=,JOURNALMATCH/
-
journalctl style matches overriding filter file.
"systemd-journal" only
- -l LOG_LEVEL, --log-level=,LOG_LEVEL/
-
Log level for the Fail2Ban logger to use
- -V
-
get version in machine-readable short format
- -v, --verbose
-
Increase verbosity
- --verbosity=,VERBOSE/
-
Set numerical level of verbosity (0..4)
- --verbose-date, --VD
-
Verbose date patterns/regex in output
- -D, --debuggex
-
Produce debuggex.com urls for debugging there
- --no-check-all
-
Disable check for all regex's
- -o OUT, --out=,OUT/
-
Set token to print failure information only (row, id,
ip, msg, host, ip4, ip6, dns, matches, ...)
- --print-no-missed
-
Do not print any missed lines
- --print-no-ignored
-
Do not print any ignored lines
- --print-all-matched
-
Print all matched lines
- --print-all-missed
-
Print all missed lines, no matter how many
- --print-all-ignored
-
Print all ignored lines, no matter how many
- -t, --log-traceback
-
Enrich log-messages with compressed tracebacks
- --full-traceback
-
Either to make the tracebacks full, not compressed (as
by default)
AUTHOR
Written by Cyril Jaquier < cyril.jaquier@fail2ban.org>.
Many contributions by Yaroslav O. Halchenko, Steven Hiscocks, Sergey G. Brester (sebres).
REPORTING BUGS
Report bugs to https://github.com/fail2ban/fail2ban/issues
COPYRIGHT
Copyright © 2004-2008 Cyril Jaquier, 2008- Fail2Ban Contributors
Copyright of modifications held by their respective authors.
Licensed under the GNU General Public License v2 (GPL).
SEE ALSO
fail2ba-client(1)
fail2ba-server(1)
jail.conf(5)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- LOG:
-
- REGEX:
-
- IGNOREREGEX:
-
- OPTIONS
-
- AUTHOR
-
- REPORTING BUGS
-
- COPYRIGHT
-
- SEE ALSO
-
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